关键词: 沸石, 硅溶胶, 氯化钛, 四丙基溴化铵, Ｘ射线衍射分析, 红外分光光度法, 紫外分光光度法, 影响因素, 丙烯P, 环氧化反应

Titanium silicalite-1(TS-1) was synthesized from inorganic reactant system using cheap colloidal silicon and TiCl3 aqueous solution as the silicon and titanium sources, respectively, TPABr as the templating agent, and diethylamine, n-butylamine, ammonia as base to provied the alkalinity necessary for crystallization. The ST-1 synthesized from the inorganic reactant system has been demonstrated to have the same characteristics with the standard TS-1 from organic synthesis system by XRD, IR, UV-vis, SEM, elemental analysis and N2 adsorption/desorption. The influence of various synthesis parameters such as base source, SiO2/TiO2 ratio, N2 protection, seed crystals, amounts of template, silicon source and crystallization time has been investigated in detail. It has been shown that the control of basicity of the reaction mixture is critical for the synthesis; N2 protection is essential when reactants were mixed; adding seeds can greatly facilitate the formation of the TS-1 crystal; there is a critical value for the minimum amount of TBABr required to crystallize TS-1; TS-1 crystals obtained with colloidal silicon are usually large.

Key words: ZEOLITE, SILICA SOLUTION, TITANIUM CHLORIDE, X-RAY DIFFRACTION ANALYSIS, INFRARED SPECTROPHOTOMETRY, ULTRAVIOLET SPECTROPHOTOMETRY, INFLUENCING FACTORS, PROPENE P, EPOXIDATION REACTION